EIS를 이용한 염화물 및 방청제가 첨가된 콘크리트에 매립된 철근의 방식성능 평가에 관한 실험적 연구

A Experimental Study on the Evaluation of Anti-corrosion Performance of rebar in concrete added chloride and inhibitor using EIS method

To evaluate anti-corrosion performance of rebar in concrete according to the amount of chloride and inhibitor, electrochemical impedance spectroscopy(EIS) method was conducted in this study. For the anti-corrosion performance evaluation according to time, Impedance of rebar in concrete was measured before and after 5 cycle of corrosion acceleration. As a results, The impedance of rebar in concrete added chloride decreased than before corrosion acceleration. However impedance of other specimens was maintained or increased than before corrosion acceleration.